KernelCare - Rebootless Kernel Updates

Discussion in 'Hosting Talk & Reviews' started by AMDbuilder, May 15, 2014.

  1. AMDbuilder

    AMDbuilder Active Member Verified Provider

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    It looks like the folks over at CloudLinux are looking to shake up the rebootless kernel update market with their introduction of KernelCare (http://kernelcare.com/).  They announced pricing on March 30th, with retail sales starting on the 1st, so it's a newer solution, but looks promising.

    They support CentOS6, RHEL6, CloudLinux 6, OpenVZ for x86_64 unmodified kernels currently, with more coming down the road.

    Anyone give this a shot yet, and if so how has it been working for you?
     
    MannDude likes this.
  2. MannDude

    MannDude Just a dude vpsBoard Founder Moderator

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    MannDude
    Nice. Curious how it compares to KSplice.
     
  3. WebSearchingPro

    WebSearchingPro VPS Peddler Verified Provider

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    KGraft is an open source and *free* alternative to KSplice and KernelCare, it was released to the public about 3 weeks ago.

    https://www.suse.com/communities/conversations/kgraft-live-kernel-patching-now-available-download/

    Edit: There is also one called KPatch, these tools are less automated than KernelCare, but in that you will have more control over the patching process. 

    ----

    One thing to note about procedurally updating the kernel this way is the kernel may not have issues while your server is running, but if the server gets rebooted a patch may cause some unforeseen issue and the server may not boot properly. I've seen mentions of this as a potential pitfall for tools such as this.
     
    Last edited by a moderator: May 15, 2014
    HalfEatenPie likes this.
  4. jenok

    jenok New Member Verified Provider

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    Too bad, no xen :)
     
  5. blergh

    blergh New Member Verified Provider

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    I've been a ksplice customer since 2010 or so, sticking with that as it's cheap & proven to work.
     
  6. LusoVPS

    LusoVPS New Member Verified Provider

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    Well, redhat does support this for I don't know how long (at least 3 years?). But it's quite nice that they're applying it to other distros.
     
  7. HostSailor

    HostSailor Member Verified Provider

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    Ksplice offers only services to oracle linux I think now, so thank you for the share, will give kernelcare a try.
     
  8. BlackoutIsHere

    BlackoutIsHere New Member Verified Provider

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    Wow this looks really interesting. Will definitely keep up with this and see how it works for people.